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The low-energy facility at SPIRAL2

The low-energy facility at SPIRAL2. D ésintégration, E xcitation et S tockage d’ I ons R adioactifs. transport-energy (50 keV) exotic-nuclide beams for:. decay spectroscopy - laser spectroscopy - ion / atom trapping -. nuclear fine structure charge radii & moments

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The low-energy facility at SPIRAL2

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  1. The low-energy facility at SPIRAL2 Désintégration,Excitation et Stockage d’ Ions Radioactifs transport-energy (50 keV) exotic-nuclide beams for: decay spectroscopy - laser spectroscopy - ion/atom trapping - nuclear fine structure charge radii & moments masses, ion-purification weak interaction studies For the DESIR Collaboration: D. Lunney, SPIRAL2 SAC, 29 January 2009

  2. The low-energy facility at SPIRAL2 Désintégration,Excitation et Stockage d’ Ions Radioactifs Spokesperson: B. Blank GANIL liaison: J.-C. Thomas collaboration initiated during the first SPIRAL2 workshop, July 2005 series of meetings through 2006-2008 to define DESIR: B. Blank, P. Campbell, F. Le Blanc, M.-J. Garcia-Borge, M. Lewitowicz, D. Lunney, O. Naviliat-Cuncic, G. Neyens, J.-L. Tain, P. Thirolf, J.-C. Thomas  over 110 scientists (lol & tp)

  3. low (no) energy & precision measurements • Increased production for two • nuclear structure paradigms: • intensity for specific reactions • chart the terra incognita • ISOL: good beam quality • TRAP: long observation time • decay kinematics • beam preparation four-year observation considerably less… beam preparation DESIR: (precise) knowledge of global observables and detailed spectroscopy Jackson Pollock NIST

  4. SPIRAL 2 facility NFS LINAC S3 production building DESIR RFQ HRS GANIL/SPIRAL 1

  5. target to DESIR production vault (red) yield station high-intensity cooler (SHIRAC) and high-resolution separator to post-accelerator (CIME) SPIRAL 2 front end F. Varenne, GANIL

  6. High-resolution mass separator symmetric design - inspired by the CARIBU HRS at Argonne National Laboratory: C.N. Davids and D. Peterson, NIMB (2008) Suggested layout Beam profile in x-direction T.Kurtukian-Nieto, CENBG

  7. gaz    faisceau High-intensity ion cooler (SHIRAC) CoolerforAccumulation &Radioactiveon LineAnalysis High dispersion High angular acceptance Low emittance  cooling  confinement Goal: * high-voltage (20 kV), high frequency (20 MHz) linear RFQ trap for strong confinement: uA beams 100  confinement of present devices: prototype Results: * uA beam trapped at Orsay: O. Gianfrancesco et al., NIMB (2008) * Emittance measurements underway at LPC: F. Duval, Ph.D, U. Caen (2009) G. Ban, LPC-Caen

  8. DESIR experimental equipment • 2.2.1. High-intensity cooler (LPC Caen) • 2.2.2. High-resolution separator (CENBG Bordeaux) • 2.2.3. Fast tape-station (IPHC Strasbourg) • 2.2.4. Stable sources & general-purpose ion buncher (CSNSM/GANIL) • * 2.2.5. Collinear laser set-up (Manchester, Leuven, Birmingham, Orsay) • including a b-NMR set-up • * 2.2.6. b-decay set-up (Bordeaux, GANIL, Strasbourg, Orsay, Madrid) • total-absorption spectrometer (Valencia/Surrey) • Penning-trap-assisted spectroscopy (Bordeaux) • neutron set-ups TETRA (Dubna) and CIEMAT (Madrid, Caen) • fast-timing spectroscopy (Uppsala/Grenoble) • general-purpose spectroscopy (Madrid) • * 2.2.7 MLL Penning-trap system (LMU Munich) • * 2.2.8. Magneto-optical trap (KVI Groningen) • * 2.2.9. Decay kinematics Paul-trap (LPC Caen)

  9. LUMIERE for radii & moments Laser Utilisation for Measurement and Ionization of Exotic Radioactive Elements magnets laser beam B Recent examples: ISOLDE: D. Yordanov et al., PRL (2008) JYFL: B. Cheal et al., PLB (2007) P. Campbell, U. Manchester; G. Neyens, K.U. Leuven; F. Le Blanc, IPN-Orsay

  10. BESTIOL experiment (BEta-decay studies at Spiral Two IsOL) TONNERRE TETRA CIEMAT fast timing TAS T-AS M.-J. Ga Borge, J.-L. Tain, Y. Penionchevich, D. Cano, H. Mach, G. Simpson, B. Blank, N. Orr

  11. Reiner Krueken

  12. DESIRTRAP (formerly MAFFTRAP) masses: nucleosynthesis, magic-number migration, weak-interaction studies D. Neidherr et al., ISOLTRAP (2008) P. Thirolf, LMU-Munich

  13. candidate: (pure GT transition) Also: atom traps H. Wilschut, KVI-Groningen "Ring" trap LPC trap for decay-correlation studies deduce b-n angular correlation from measurement of b-recoil X. Flechard et al., PRL (2008) trapping & measuring cooling & bunching SPIRAL1 low-energy beam line E. Liénard & O. Naviliat-Cuncic, LPC-Caen

  14. Various beams to DESIR GANIL - SPIRAL1 (S1) DESIR SPIRAL2 (S2) S3

  15. General purpose LN2 Control room Gas & waste storage IS TAS off-line source 1 Collinear Laser spectroscopy b-NMR off-line source 2 Penning trap + Decay setup MLL trap Double MOT RFQ bun- cher Paul trap DAQ room General purpose Neutron ditch Electronics Desk Access DESIR beam hall Identification station with tape LUMIERE BESTIOL SAS Laser mezzanine Kitchen + WC (on top of CR) Beam from Level -1 Meeting room (on top of DAQ) Crane access to basement 5 m

  16. Assembly Room 3 Gray Room 2 Electri- city Stor- age 1 Stor- age 2 Gray Room 1 free Assembly Room 1 Assembly Room 2 Control Racks Interfaces HV supplies Crane access to basement 5 m Neutron ditch DESIR cave Work shop Radio lab storage X Supply Limits of DESIR hall

  17. control room Paul trap MOT LUMIERE ion sources buncher MLL Penning trap S1 S2 S3 neutrons BESTIOL general purpose spectroscopy TAS automated beam tuning system

  18. ISOLDE

  19. DESIR facility work packages • General-purpose ion buncher • and stable-ion sources: Pierre Delahaye • RFQ SHIRAC: Gilles Ban • High-resolution separator: Bertram Blank • Identification station: Philippe Dessagne • Beam transport lines: Francois Le Blanc • Safety and security: Jean-Charles Thomas • Command/Control, diagnostics: Stéphane Grévy • Building: Franck Delalee DE IR …from the desire for fine physics Thanks to the collaboration & spokesman

  20. DESIR time line

  21. Budget DESIR 2009 - 2012 • DESIR hall+ bâtiment d’interface : 6000 k€ • Cooler SHIRAC non-nucléarisé (LPC Caen) : 450 k€ • HRS (CENBG – contribution pour hall de montage) : 50 k€ • mission DESIR – HRS (CENBG) : 4 * 15 k€/an • HRS : 1500 - 3000 k€ • lignes de faisceau (optique, pompage) : • vers DESIR : 2700 k€ • dans DESIR (seulement l’arête) : 870 - 1400 k€ • contrôle/commande, diagnostiques: 400 k€ • station d’identification (Strasbourg) : 140 k€ • General purpose ion buncher GPIB (GANIL) + 2 stable IS: 290 k€ • fast timing setup (Grenoble) : 34 k€ • Beam-preparation double Penning trap (CENBG) : 945 k€ • LPCTRAP facility (LPC) : 105 k€ • Neutron detection array (LPC) : 150 k€ Mode de financement: SPIRAL2, Espagne, ANR, Région Aquitaine, IN2P3, CPER, GANIL, laboratoire, Europe ?

  22. IN2P3, GANIL, Laboratoires • Cooler SHIRAC (LPC Caen) : • 450 k€ + nucléarisation (dont 320 k€ CPER) • HRS (CENBG – contribution pour hall de montage) : 50 k€ • mission DESIR – HRS (CENBG) : 4 * 15 k€/an • station d’identification (Strasbourg) : 140 k€ • General purpose ion buncher GPIB + 2 stable IS (GANIL/CSNSM): 290 k€ • Double Penning trap (mission + fonctionnement) (CENBG) : 190 k€ • LPCTRAP (LPC) : 105 k€ • Neutron detection array (LPC) : 150 k€ • fast timing setup (Grenoble) : 34 k€ SPIRAL2 • DESIR hall + bâtiment d’interface : 4000 k€ (+ 2000 k€ CPER) • Contribution HRS ? • eventuellement: • lignes de faisceau : vers DESIR : 2700 k€ • dans DESIR (seulement l’arête) : 870 - 1400 k€ • contrôle/commande, diagnostiques: 400 k€

  23. ANR & Région Aquitaine • Beam-preparation double Penning trap, investissement (CENBG) : 755k€ Autres.... • Espagne: • HRS : 1500 - 3000 k€ • lignes de faisceau : to DESIR : 2700 k€ • central DESIR beamlines: 870 - 1400 k€ • contrôle/commande, diagnostiques: 400 k€ What about the S3-DESIR line?

  24. Matrice de financement IN2P3/GANIL/Laboratoires ( k€ ) + main d’œuvre du GANIL, du CENBG, de l’IPNO, du LPC Caen, de l’IPHC, du LPSC…

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